CFD Online Logo CFD Online URL
Home > Forums > STAR-CCM+

reason for divergence

Register Blogs Members List Search Today's Posts Mark Forums Read

LinkBack Thread Tools Display Modes
Old   May 8, 2013, 12:13
Default reason for divergence
New Member
Rohit Ray
Join Date: Jun 2011
Location: India
Posts: 4
Rep Power: 6
rayzcorp is on a distinguished road
I am running a simulation for a sphere with seam in air flow. when i rotated the seam and ran the simulation again, the solution is not converging. I did keep all the conditions same as the earlier case.
Can suggest me what to check if your Tke and Tdr aren't converging?
rayzcorp is offline   Reply With Quote

Old   May 14, 2013, 12:57
New Member
Join Date: Oct 2011
Posts: 24
Rep Power: 6
Kasey is on a distinguished road
Try selecting "Cell Quality Remediation" as an optional physics model.

It could also mean that you need to decrease your mesh size.
Kasey is offline   Reply With Quote

Old   May 29, 2013, 13:43
New Member
Join Date: Apr 2013
Location: bangalore
Posts: 6
Rep Power: 4
Fluidengineer is on a distinguished road
Along with addition of cell quality remediation reduce the under relaxition parameter.
Still if it does not work then change the boundary conditions to lower values.
Fluidengineer is offline   Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Reason for oscillating residuals fayaazhussain Main CFD Forum 3 August 21, 2014 10:31
[ICEM] What is the reason for this negative determinant? kiddmax ANSYS Meshing & Geometry 6 April 18, 2013 10:59
Reason for asymmetry in symmetric geometries doubtsincfd Main CFD Forum 1 June 10, 2010 08:13
Discussion: Reason of Turbulence!! Wen Long Main CFD Forum 3 May 15, 2009 09:52
Reason of divergence ? Brayton Main CFD Forum 3 December 2, 2000 23:34

All times are GMT -4. The time now is 03:42.